Position	Website	Change	Thumbnail
1	engineeringtoolbox - Engineering ToolBox Tools and Basic Information for Design, Engineering and Construction of Technical Applications	2
2	tambemetal - Tambe Metal Products Tambe Metal Products provides ductwork fabrication and complete installation of residential and commercial heating and air conditioning systems.	-2
3	setductmanufacturing - SET Duct Manufacturing > Home SET Duct Manufacturing	4
4	kineticsnoise - Kinetics Noise Control, Room Acoustics, Vibration Isolation, Seismic Restraint Specializing in airborne noise control, structure-borne vibration isolation, seismic and wind restraint, floating floor systems, industrial noise and ...	5
5	csgnetwork - CSGNetwork.com Free Information - Calculators, Converters and Source Code CSGNetwork Free Information. Calculators, Converters, Glossary, Open Source Code... find something. Most pages require JavaScript.	0
6	commercialduct - Commercial Duct Systems	4
7	forums.autodesk - Autodesk Discussion Groups - Autodesk Discussion Groups	20
8	sweets.construction - Building Materials Information, Manufacturers, CAD, BIM, Specs, Catalogs – Sweets – Product info... Building materials, products, and manufacturers on the McGraw-Hill Construction Sweets Network. Download CAD details, specs and green product informa...	0
9	dupont - DuPont. The miracles of science? DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a...	0
10	revitforum - Revit Forum - Revit, BIM, Architecture & Engineering. Revit Forum is a user community where you can get Help, Share and Download Revit Families, Find Revit Jobs, Tips & Tricks, Tutorials and lots more...	9
11	it.scribd - Scribd Scribd is a social publishing site, where tens of millions of people share original writings and documents. Scribd	0
12	scribd - Scribd	1
13	hvac-talk - HVAC-Talk: Heating, Air & Refrigeration Discussion - Powered by vBulletin The #1 HVACR Community	-2

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